What is the difference between Outlook Client Extension DLL and COM-ADD IN?

[Julia]

Hello,what is the difference between Outlook Client Extension DLL and
COM-ADD IN?
Will i be able to insert advanced toolbar(graphics,pop ups etc..) from the
Outlook Client Extension DLL?


10x

 

[Sue Mosher [MVP]]

COM add-ins support only Outlook 2000 and can be written with VB. Client
extensions support all versions and require C++ or Delphi to work with
Extended MAPI. I don't know of any differences in the command bar support
between the two; maybe Dmitry can weight in.

 

[Ken Slovak - [MVP - Outlook]]

Not Dmitry, but I think you meant COM addins are for Outlook 2000 or
later only...

 

[Sue Mosher [MVP]]

Yup. Thanks.

Not Dmitry, but I think you meant COM addins are for Outlook 2000 or
later only...

 

[Dmitry Streblechenko \(MVP\)]

I personally prefer ECE over COM addins: ECE is the best of both worlds -
you can still use the ECE API (especially callbacks, which are much more
efficient than OOM events), plus you can always resort to OOM using
IOutlookExtCallback. Once you have a pointer to Application, your ECE can do
everything a COM add-in can, but do it in any version of Outlook.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool